Hello All

I'm having a problem with my 1991 945T charging system. My alternator is not charging the battery. When I take a reading with a digital voltmeter, I get whatever the battery reads(this is while taking a reading at the alternator, both at the big red wire and the thin wire). The thin wire gets no reading if the ignition is off, 2.4v ignition on(engine off), and whatever the battery has with the engine running. The big alternator's wire gives a reading of whatever the battery has. I took the alternator to the the place I bought it(about a year ago, they rebuild them themselves), the alternator is good and they went ahead and replaced the regulator anyhow. I have bought from them and think they do a good job. I have done the following: replaced the battery, voltage regulator, both cables, the short ground wire to the alternator is in good shape, checked all the fuses. One thing to mention is that about 3 weeks ago, the idiot lights would glow for a few seconds while driving. Lately, on occation, the car seemed like it wanted to stall when making slow turns. It also has been running a bit rough. Any ideas? The car has 230K miles.